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These results suggested that ASR could be a photochromic color sensor, whereas nothing was well-known about the structural changes and scheme of its photochromic reactions when we started the study.Figure 4.(Left) X-ray crystallographic structure of ASR (1XIO[16]). Purple ribbons, green spheres, yellow and white sticks correspond to helices, water molecules, retinal and amino acid www.selleckchem.com/products/SB-203580.html residues, respectively. (Right) The Schiff base region of ASR and BR (translucent …Amino acid sequence comparison between ASR and BR reveals that some important residues for pumping protons are replaced in ASR. The proton donor to the Schiff base (Asp96 in BR) and one of proton release groups Inhibitors,Modulators,Libraries (Glu194 in BR) are replaced by serine residues, Ser86 and Ser188, respectively (Figure 5).Figure 5.

Comparison of amino acid sequences of ASR and BR. The transmembrane topology is based on the Inhibitors,Modulators,Libraries crystallographic three-dimensional structures. The sequence alignment was done using CLUSTAL W [21] with the default settings. Single letters in a circle denote …Ten amino acid residues out of twenty-five which constitute the retinal binding site are different from those of BR, probably accounting for the different absorption maximum and photochromic behavior of ASR. Among them, the most characteristic replacement is Pro206 located at the position of Asp212 in BR, which is one of the counterions of the Schiff base and a well conserved amino acid residue in archaeal type rhodopsins (Figure 6). The influence of Pro206 on the hydrogen bonds around the Schiff base should be studied precisely for elucidating the difference in the structural changes of retinal and protein between ASR and BR upon their activation.

Figure Inhibitors,Modulators,Libraries 6.The 25 amino acid sequence of archaeal-type rhodopsin around retinal. First, second, third, fourth and fifth categories represent the families of bacteriorhodopsin, halorhodopsin, sensory rhodopsin I, sensory rhodopsin II and other archaeal-type rhodopsins, …As shown above, ASR is a Inhibitors,Modulators,Libraries unique archaeal-type rhodopsin. However, the molecular properties, particularly the nature of its photochromic behavior, were Brefeldin_A much less known. Thus, in the last five years, we have studied various properties of ASR, mainly by use of spectroscopic techniques. Since ASR possesses visible absorption, UV-visible spectroscopy is the basic technique to study the properties of this molecule.

Low-temperature UV-visible spectroscopy was used to study the photochromism of ASR described in Section 4. In the photochromic reaction, the isomeric states of the retinal chromophore play an important role, and HPLC analysis is the direct method to determine the isomeric composition of the retinal chromophore. We used this method in the work described in Section www.selleckchem.com/products/Paclitaxel(Taxol).html 3. On the other hand, in our studies we have mostly used low-temperature Fourier-transform infrared (FTIR) spectroscopy [22,23].

On kinase inhibitor EPZ-5676 the other hand, since features may not be equally effective for classification, Discriminant Adaptive Nearest Neighbor (DANN) uses a locally weighted distance measurement scheme to compute the distance between two points [8]. The accuracy of KNN and its two variants, Local KNN and DANN, were examined by Bicego [9]. These three KNN-based methods were comparable on the examined data sets regardless of the computational cost.The methods of dimensionality reduction, such as Principal Component Analysis (PCA) and Linear Discrimination Analysis (LDA), seek to reduce the data size required for classification. PCA is an unsupervised method, which finds a set of orthogonal projection directions that capture the largest amount of variation in data without using the class information of the data.

On the other Inhibitors,Modulators,Libraries hand, LDA makes use of the class labels to find a lower-dimensional vector space for best class separation. For example, a 100% classification rate was achieved by LDA for classification of different tomato maturity states and different qualities of green tea samples [10,11]. The study in [12] indicates that PCA could yield superior classification results when a small training set is used. However, traditional classification Inhibitors,Modulators,Libraries methods would require significant computational cost if the sensor number is large.Regression analysis is a statistical data analysis approach which seeks a continuous fitting function of independent variables to model the dependent variables. The Least-Squares Inhibitors,Modulators,Libraries method can be used to find such fitting function by minimizing the sum of squared differences between each of the known data point and the fitting function.

The NASA��s Jet Propulsion Laboratory (JPL) used a set of self-developed polymer composite sensors to quantify single and mixed contaminants [13,14]. A second order polynomial regression based on the assumption of additive linearity was used to model the relationship between the gas concentration Inhibitors,Modulators,Libraries vector and the sensor responses. Carmel et al. [15] took the same assumption and further Dacomitinib considered the relative influence of each component on the total mixture response. The modified model provided a promising result when more than two components were present in the examined mixture.Although the classification methods represent a promising technology for analyzing electronic nose data, its applications are mainly focused on discrimination between different odors.

Moreover, odors containing the same components but with different mixing ratios are generally perceived as different smells. For this reason, a traditional classification Vandetanib mechanism method will not be applicable for differentiating the smells. A more practical solution is to partition the odor space into subspaces and classify an odor into one of the subspaces. This paper adopts a supervised strategy to categorize the mixed odor dataset into several groups according to the components.

One of the most crucial issues of immunosensor fabrication is associated with the loss of biological activity upon immobilization of antibodies, because of their random orientation on support surfaces [7�C10].In general, inhibitor Ganetespib the immunoglobulin molecule consists of two polypetide chains F(ab��)2 responsible for antigen binding, and an Fc domain, which is not involved in these interaction. The Fc could be removed by enzyme digestions [15,16]. The prepared F(ab��)2 or F(ab��) fragments could be self assembled on the gold surface or other functionalized supports due to disulfide or thiol group from the hinge region of immunoglobulin G [17�C22].The immunosensor fabrication process proposed here is shown in Scheme S1 (Supporting Information).

The gold nanorods (GNR) have been applied for the underlayer of the immunosensor because of their excellent electron conductivity (EIS measurements) and optical properties (SPR measurements). Gold nanorods are interesting for use in biosensor fabrication thanks to their more suitable properties compared to spherical nanoparticles such as gold Inhibitors,Modulators,Libraries colloid.The Inhibitors,Modulators,Libraries end facets of anisotropic Au nanorods are dominated by 111 planes and the side facets by 100 and 110 planes. It was reported that thiol derivatives preferentially bind to the 111 planes of Au nanorods [23�C25]. This specific interactions allow Au nanorods assembly perpendicular towards the gold support with using dithiols as the linkers. In contrast, assembling of spherical isotropic Au nanoparticles create ordered 2�CD and 3D structures, which are less suitable for selective binding of molecules on the surface [23�C25].

The assembling of GNRs onto dithiol SAM deposited on the Au support create well Inhibitors,Modulators,Libraries ordered conductive layer with 111 planes on the Inhibitors,Modulators,Libraries surface, which is very suitable for oriented covalent immobilization of receptor through Au-S bonding. So, utilizing GNRs in biosensor designing is more efficient compare to using nanoparticles with spherical structures [26].The study presented concerns the selective binding of antigen rSPI2-His6 present in the sample solution by F(ab��) fragment of antibody immobilized on a surface of the electrode was observed using electrochemical impedance spectroscopy (EIS) as well as surface plasmon resonance (SPR).2.?Experimental Section2.1. ChemicalsAlumina 0.3 and 0.05 ��m was purchased from Buehler (USA).

In the second strategy, geometrical features are extracted from aerial images (e.g., 2D segments, junctions, corners, customer reviews Inhibitors,Modulators,Libraries lines) and then converted into 3D features. The final polyhedral model is then estimated using these 3D features (e.g., Figure 2(g)). As in the first strategy, the extraction and matching stages inevitably affect the accuracy of the final 3D model. [2] and [3] are well-know references in the literature which respectively illustrate the two strategies described above.Figure 3.Flowchart diagram currently adopted by some image-based building modeling approaches. The diagram presents two paths conducting to 3D polyhedral building models. These two paths are illustrated by the first two rows of Figure 2.Figure 4.

Some erroneous reconstructed buildings resulting from a known feature-based framework for massive building reconstruction (BATI-3D? prototype software��a large scale building modeling pipeline developed Inhibitors,Modulators,Libraries at the French National Geographical Inhibitors,Modulators,Libraries …The 3D building reconstruction of a full urban environment requires automatic or semi-automatic methods. The massive reconstruction approaches usually employ a feature extraction stage. However, this stage is very sensitive since it can induce some missed-detections, false alarms, under-detections or over-detections. To control these effects, the 3D building modeling approaches employ computer vision strategies. These strategies are regrouped into two paradigms. More precisely, the first paradigm is a bottoms-up scheme and consists in the assembly of geometric features without pre-existing knowledge of the sought model.

The second paradigm, called top-down, exploits a library of models and searches the model that best fits with the input data (images, DSMs).As previously mentioned, several approaches for 3D reconstruction of polyhedral building models currently employ as input Digital Surface Models (see Figure 2(b)). The classical Inhibitors,Modulators,Libraries DSMs are usually generated from calibrated aerial images by a multi-correlation based optimization process such as the graph cut optimization. The DSMs (derived data) are generally maps comprising only one value of altitude z for each ground location (x, y). These 2.5D maps can be considered as special 3D point clouds. However, the obtained 3D surface does not accurately model the physical surface especially at height discontinuities such as at roof and superstructure boundaries due to the correlation criterion used.

Hence, the DSMs provide an approximated geometrical description of building surfaces and can be noisy. Other modeling approaches employ multi-source data, for example optical images combined with LIDAR data (e.g., [16]). Although Brefeldin_A less dense, LIDAR data selleck chemicals can be employed in place of DSMs since they are both accurate (e.g., [9�C13]).Paper ContributionIn this paper, we propose a direct and featureless approach for the extraction of 3D simple polyhedral building models from aerial images (Figure 2(a)).

The use of this second membrane allowed both pyruvate and NADH www.selleckchem.com/products/Tipifarnib(R115777).html to be immobilized but their free diffusion in the membrane would also be Inhibitors,Modulators,Libraries ensured to maintain a rapid reaction rate. The biosensor was thus designed to provide a reagentless system specific for NH4+ ion. Figure 1 represents the mechanism of the enzymic reaction involved in the developed NH4+ ion biosensor based on a stacked membrane system.Figure 1.The mechanism of enzymatic reaction involved in the NH4+ biosensor based on stacked membranes.2.?Experimental2.1. ReagentsChemicals were obtained from commercial sources and were used without further purification. ��-Nicotinamide adenine dinucleotide, reduced form (NADH, 98%) was purchased from Sigma. Stock solution of L-alanine dehydrogenase enzyme (AlaDH, E.C. 1.4.1.1, from Bacillus subtillis, Sigma) was prepared by mixing an appropriate amount of AlaDH enzyme Inhibitors,Modulators,Libraries solution with 10 mM phosphate buffer pH 7 in an Eppendorf tube and stored at 4 ��C [23]. Sodium pyruvate (C3H3NaO3, 99%, Sigma) stock solution was prepared by dissolving an appropriate amount of pyruvate salt in deionised water. pH 7, 10 mM phosphate buffer was prepared by adding 10 mM dipotassium hydrogen phosphate (K2HPO4, 98%, Fluka) to 10 mM potassium dihydrogen phosphate (KH2PO4, 99.5%, Fluka) and adjusting to the required pH value [23]. A standard stock ammonia solution was prepared by dissolving the required amount of concentrated ammonia solution (NH4OH, 25%, Merck) in deionised water. The ammonia solution used was standardised by the Nessler method using ammonium chloride (NH4Cl, 99.5%) salt. A homogeneous stock solution of 2-hydroxyethyl methacrylate monomer (HEMA, C(CH3)COOCH2CH2OH, 97%, Aldrich) was prepared by mixing appropriate amounts of HEMA monomer and initiator (2,2-dimethoxy-2-phenylacetophenone, DMPP, C16H16O3, Inhibitors,Modulators,Libraries 98%, Fluka) in a vial wrapped with aluminium foil. The mixture was then stirred gently for a few minutes and stored at 4 ��C. Poly(2-hydroxyethyl methacrylate) (pHEMA) was obtained commercially from Aldrich.2.2. InstrumentationElectrochemical behaviours Inhibitors,Modulators,Libraries of the reagentless biosensor were characterised using a chronoamperometry technique with an Autolab PG12 (AUT 71681) Potentiostat/Galvanostat. A conventional three-electrode electrochemical cell was used Carfilzomib with a glassy carbon electrode as an auxiliary electrode. A Ag/AgCl electrode saturated with KCl was thoroughly used as a reference and a modified carbon paste electrode was used as a working electrode. The SPEs used were designed by Universiti Kebangsaan Malaysia and manufactured by Scrint Print Co. All potentials were measured and reported versus a Ag/AgCl electrode (saturated by KCl). During the constant potential experiments, a magnetic stir bar was used and the background current was allowed to decay to a constant value before NH4+ ion was added to the buffer solution.

It was also found in soils and agricultural products (vegetable and fish samples) [30], meaning that it is persistent and mobile enough to be detected in the soil, water and organisms sometime after the application.The earthworms�� avoidance behavior towards the three cypermethrin-treated soils was here studied basically according to http://www.selleckchem.com/products/kpt-330.html the ISO 17512-1 [18] and ABNT NBR ISO 17512-1 [20] guidelines, using three replicates of plastic square chambers Inhibitors,Modulators,Libraries with 500 mL capacity (13 cm �� 13 cm �� 5 cm high) for each dose of treatment. The chambers were divided in two equal parts and 100 g of each soil moistened and maintained at 60% WHCmax during the previous week were placed in each side of the chambers. The treatment was applied to the soil in just one side of the chambers (C1, C2 or C3) and the other side remained cypermethrin-untreated��control soil (C0), along with double control chambers (C0�CC0). The size of the chambers and the proportion of soil: earthworms were almost the same used by [2] for acute toxicity test in a four Inhibitors,Modulators,Libraries day study.The treatments were 15, 30 and 60 ��g technical grade cypermethrin g?1 soil, and the double-control were treated with the maximum volume of the acetone solution (360 ��L) used in the treatment. The wettable powder cypermethrin was diluted in ethanol and the treatment corresponded to 15, 25 and 35 ��g (a.i.) g?1 soil, respectively for C1, C2 and C3; the double-control were treated with 5.0 mL of ethanol. The systems remained overnight Inhibitors,Modulators,Libraries in fume hood for solvent evaporation, the divider was then removed and six adult earthworms (>300 mg, with clitelum) were placed all together in the slit in the middle of the chambers. The utilized doses were much higher than the recommended ones because, in a separate study (results not reported), the earthworms did not die in contact with up to 340 Inhibitors,Modulators,Libraries ��g of active ingredient of cypermethrin.All the chambers were closed with perforated plastic film to allow air circulation, and maintained at approximately 22 ��C under continuous light for 48 h. At the end of the test period, the counting of the compost worms was done on each side of the chambers. According to ISO 17512-1 [17], the avoidance to the different soil treatments was calculated by counting the mean number of earthworms in each concentration and compared with the mean AV-951 number of worms in the untreated control soil. Before the placement of the earthworms in the chambers and after their removal, (3�� approximately) 3 g samples of the treated soils were removed for monitoring Nilotinib Leukemia the pH in order to verify other causes of the earthworms�� behavior.The amount of earthworms was converted to percentage of avoidance by the followInfrared spectroscopy is an analytical technique that measures interaction between matter and electromagnetic radiation.

certainly The sixth article [6] is entitled ��A Web Service-Based Framework Model for People-Centric Sensing Applications Applied to Social Networking��, by David Nunes, Thanh-Dien Inhibitors,Modulators,Libraries Tran, Duarte Raposo, Andr�� Pinto, Andr�� Gomes and Jorge S�� Silva. This interesting article uses hardware and architectures to establish a relationship between sensors and social networks like Facebook, sharing mobile phones and sensors, enabling the creation of people-centric sensing systems. The authors have developed a Web Service to provide solutions such as the detection of users’ activities and locations, sharing this information amongst the user’s friends within a social networking site. This research deserves to be recognized due to the level of interest in this topic. The prototype of the architecture developed represents a first step into a research on people-centric sensing, where future advances of SoC will be important for the development Inhibitors,Modulators,Libraries of sensors specifically oriented for these kinds of systems.The seventh article [7] is ��Parametric Dense Stereovision Implementation on a System-on Chip (SoC)��, by Alfredo Gardel, Pablo Montejo, Jorge Garc��a, Ignacio Bravo and Jos�� L. L��zaro. This Inhibitors,Modulators,Libraries article proposes a SoC implementation of a dense recovery of stereovision 3D measurements. As vision sensors have an increasing number of pixels, the FPGA-based SoC designed for stereovision provides a scalable architecture, high performance and real-time processing of stereo image flow. Some characteristics of this architecture are: double buffering techniques, pipelined processing, and no external memory. The authors point out that this development can be applied in autonomous systems, acting as a coprocessor to reconstruct 3D images with high density Inhibitors,Modulators,Libraries information in real time.The eighth article [8] is entitled ��Dual Super-Systolic Core for Real-Time Reconstructive Algorithms of High-Resolution Radar/SAR Imaging Systems��, by Alejandro Castillo Atoche and Javier V��zquez Castillo. The authors have addressed the design of a high-speed dual super-systolic Entinostat array core for the enhancement/reconstruction of remote sensing imaging of radar/synthetic aperture radar sensor systems. The selected reconstructive signal processing algorithms are parallelized and mapped into a high performance kinase inhibitor Volasertib embedded computing architecture based on FPGA platforms. The proposed architecture has tested solving the nonlinear ill-posed inverse problem of nonparametric estimation of the power spatial spectrum Oil-paper insulation systems are commonly used in power apparatus such as power transformers and high voltage cables, among others.

This work tries to take one step ahead in the interaction within WSNs, proposing an integral web interaction from the end user to the sensor tags in order to take advantage of the IP network technologies during all the data transmission process. In other words, we put each sensor tag www.selleckchem.com/products/mek162.html directly in the Internet as part of the Internet of Things paradigm [11], whereby everything will be interconnected anytime and anywhere.The primary purpose of the current paper is to present the new concept of near field Inhibitors,Modulators,Libraries sensor tags with a web browsing interaction for secure applications. This is done by tunneling the TCP/IP Inhibitors,Modulators,Libraries traffic over a near field radiofrequency technology (NFC), avoiding the use of proprietary protocols and application program interfaces. As the NFC identification technology is not intended to exchange large amount of data, the problems found so far and the way they have been solved, as well as the advantages of this near field web access approach, will be Inhibitors,Modulators,Libraries shown in the next sections.The remainder of the Inhibitors,Modulators,Libraries paper is organized as follows: Section 2 reviews the basic access modes of sensor monitoring used nowadays and the main wireless technologies used. Section 3 introduces the concept of the proposed sensor tag with a web access. Section 4 presents a summarized explanation of the implementations and the system evaluation of the WebTag. The conclusions of this paper are summarized in Section 5.2.?Access Modes of Sensor Wireless MonitoringSensor wireless monitoring can be analyzed and classified in many ways, but in this section we are going to focus on one specific aspect: the access mode.Regarding the interaction in sensor wireless monitoring, we can simplify it into two access modes: near field or remote access, depending on where the information is processed. In the first case, a dedicated device (reader) reads directly the sensor data, processes the information and interacts with the end user depending CilengitideMLN2238 on the application requirements. However, in the second case, the sensor data is retransmitted through the wireless network before it reaches the network gateway, where that data is sent to an upper decision making system. The WSNs use mainly the remote access mode, while the near field mode is more used in classical wireless monitoring.In both cases, the communication process can be divided into two main stages: the former (on the right side of the Figure 1) is carried out when the data is transmitted from the sensor tag to the reader or the network gateway (let’s define it as data acquisition), depending on the access mode. The latter, is done when data is sent upstream from the reader or the gateway node to an upper decision making system or to the Internet (let’s call it data transmission).

1.1. State of the ArtHertz was the first to demonstrate the propagation http://www.selleckchem.com/products/Vandetanib.html of EM waves in free space and to demonstrate other properties of EM waves such as reflection using parabolic reflectors [9]. Wireless power transmission was then investigated and demonstrated for possible wireless remote powering by Tesla. Electromagnetic power beaming for far field wireless power transfer using collimated EM waves was proposed in the 1950s [9]. Recent advances in ultralow power sensors means ambient omni-directional EM power can be used as a source for powering remote sensors without the need to collimate the EM power through the wireless space. Mickle [10] and McSpadden [11] have presented earlier work on wireless energy harvesting systems using Schottky diodes and rectennas where the usability of ambient RF power into DC power was shown. Sample [12] presented a wireless harvester which can harvest EM power from TV and radio base stations Inhibitors,Modulators,Libraries transmitting 960 kW of effective radiated power; 60 Inhibitors,Modulators,Libraries ��W was harvested at a range of about 4 km. Umeda [13] and Le [14] have presented more integrated wireless energy harvesters based on CMOS RF to DC rectifying circuits. CMOS-based rectifying power converters provide full compatibility with standard CMOS technologies and have advantages in batch processes for mass production. The drawback of CMOS-based diode connected transistors is the need to bias the gate of the transistors for the rectifying circuits to effectively function. This gate bias is provided externally, which makes Inhibitors,Modulators,Libraries the system not passive. Inhibitors,Modulators,Libraries Without the injection of external charges or a biasing of the transistor gate, the circuit has low efficiency, especially when the amplitude of the input voltage is low [15]. Shameli [2] presented a passive CMOS RF to DC power converter with a voltage sensitivity of 1 V at ?14.1 dBm input, but the circuit efficiency was only 5 %. Zbitou [16] presented an RF to DC converter based on Schottky diodes and achieved 68 % efficiency at 20 dBm RF input power. Ungan [17,18] presented antennas and high quality factor RF to DC power converters at 24 MHz and 300 MHz for RF wireless energy harvesting at 30 dBm input power. The power converter used high quality factor resonators for impedance matching Dacomitinib the EM source and the diodes and achieved high open circuit voltage sensitivity of 1 V/��W. Boquete [19] presented a risk assessment system neverless for calculating insurance premiums by monitoring mobile phone usage while driving. This was done by harvesting EM power from detected mobile phone usage during driving for risk assessment. Heikkinen [20] presented rectennas on different substrates at 2.4 GHz using transmisson lines to match the antennas output resistance (at resonance) to the rectifying diodes. Akkermans [21] presented a rectenna design by complex conjugating impedance provided by a microstrip structure to a diode so that resonance may be achieved for a working frequency.

ould act acutely to affect differentiated trophoblast cell function. Several of the differentiation associated genes KPT-185 were also sensitive to acute disruption of the PI3K signaling pathway. PI3K regulation of trophoblast steroidogenesis Trophoblast giant cells are known sites for the biosynth esis Inhibitors,Modulators,Libraries of progesterone and androstenedione. Sev eral genes encoding proteins involved in the biosynthesis of steroid hormones are upregulated during trophoblast differentiation. These include Star, which encodes a protein involved in transporting cholesterol to the mitochondria, and a series of genes encoding enzymes responsible for the production of progesterone and androstenedione. Hsd3b1 and Cyp17a1 expression were positively regulated by PI3K signaling.

Consistent with this observation, the production of androstenedione by dif ferentiating trophoblast cells was also dependent upon PI3K. Discussion Organization of the hemochorial placenta is the result Inhibitors,Modulators,Libraries of signaling pathways directing the expansion and differen tiation of trophoblast stem cell and progenitor cell populations. This decision making culminates in the sys tematic activation and inactivation of gene networks within trophoblast cell populations and elaboration of specific functions that facilitate redirection of resources from the mother to the fetus. In this report, we utilized the Rcho 1 trophoblast stem cell model and induced dif ferentiation through increased cell density and removal of growth stimuli. The growth factor deprivation may also lead to activation of stress pathways, which have been shown to influence trophoblast differentiation.

Using this strategy, we have identified genes associated with trophoblast stem cell expansion, differentiation, and those impacted by the PI3K signaling pathway. Trophoblast stem cell associated genes Stem cells Inhibitors,Modulators,Libraries possess the potential to proliferate and to dif ferentiate. Several genes implicated in maintenance of the trophoblast stem cell state were identified in Rcho 1 trophoblast stem cells and are similarly present in mouse trophoblast stem cells. These include an assort ment of genes implicated as cell cycle regulators in numerous cell types and also genes that have been more specifically shown to have a role in the specification and maintenance of trophoblast stem cells. Phlda2 displayed one of the most striking differences in its expression profile in stem versus differentiated cells.

It was high in stem cells and virtually undetectable follow ing differentiation, which is also found in mouse tropho blast stem cells. Phlda2 is intriguing for a number Inhibitors,Modulators,Libraries of reasons. Phlda2 is an imprinted gene GSK-3 exhibiting maternal allele specific expression in extraembryonic and embryo nic structures and in postnatal tissues, including the kid ney. In the mouse, disruption of the Phlda2 gene leads to placental overgrowth, while overexpression of Phlda2 results in placental growth restriction. Given that PHLDA2 restrains Z-VAD-FMK msds placental growth it seems counter intuitive that it wo